:root{
  --bg:#0b1020;
  --card: rgba(255,255,255,0.06);
  --text: rgba(255,255,255,0.92);
  --muted: rgba(255,255,255,0.68);
  --line: rgba(255,255,255,0.12);
  --accent:#7c5cff;
  --accent2:#26d6a1;
}

*{ box-sizing: border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background:
    radial-gradient(1000px 600px at 10% 0%, rgba(124,92,255,0.25), transparent 60%),
    radial-gradient(900px 600px at 90% 10%, rgba(38,214,161,0.18), transparent 60%),
    var(--bg);
  color: var(--text);
}

a{ color:inherit; text-decoration:none; }
a:hover{ opacity:0.9; }

.header{
  position: sticky;
  top:0;
  z-index: 50;
  display:grid;
  grid-template-columns: 1fr auto 1fr; /* logo | centered nav | actions */
  align-items:center;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
  background: rgba(11,16,32,0.6);
}

.logo{
  justify-self: start;
  font-weight: 800;
  letter-spacing: 0.2px;
  font-size: 22px;
}
.logo span{ color: var(--accent2); }

.nav{
  justify-self: center;
  display:flex;
  gap: 28px;
  align-items:center;
}
.nav a{
  color: var(--muted);
  font-size: 18px;
}
.nav a:hover{ color: var(--text); }

.nav-center{
  justify-self: center;
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang, .menu{
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--text);
  border-radius: 12px;
  padding: 8px 10px;
  font-size: 14px;
  cursor:pointer;
}
.menu{ display:none; font-size: 16px; }

.mobile-nav{
  display:none;
  border-bottom: 1px solid var(--line);
  background: rgba(11,16,32,0.92);
  backdrop-filter: blur(10px);
  padding: 10px 20px 14px;
}
.mobile-nav a{
  display:block;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  margin-top: 10px;
  color: var(--muted);
}
.mobile-nav a:hover{ color: var(--text); }
.mobile-nav.open{ display:block; }

main{ max-width: 1050px; margin: 0 auto; padding: 24px 20px 56px; }

.hero{
  display:grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 22px;
  padding: 26px 0 10px;
  align-items: start;
}

.tag{ color: var(--muted); margin: 0 0 6px; }
.hero h1{ font-size: 44px; margin: 0; line-height: 1.1; }
.hero h2{ font-size: 18px; margin: 10px 0 0; color: var(--muted); font-weight: 600; }
.desc{ color: var(--muted); margin-top: 14px; max-width: 58ch; }

.hero-actions{ display:flex; gap: 12px; margin-top: 18px; flex-wrap: wrap; }
.links{ display:flex; gap: 14px; margin-top: 14px; color: var(--muted); flex-wrap: wrap; }
.links a{ text-decoration: underline; text-underline-offset: 4px; }

.avatar{
  height: 220px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(124,92,255,0.25), rgba(38,214,161,0.12));
  display:flex;
  align-items:center;
  justify-content:center;
  color: rgba(255,255,255,0.75);
  font-weight: 700;
}

.section{ margin-top: 46px; }
.section h3{ font-size: 22px; margin: 0; }
.section-desc{ color: var(--muted); margin-top: 10px; }

.grid{ display:grid; gap: 14px; margin-top: 14px; }
.grid.two{ grid-template-columns: repeat(2, 1fr); }
.grid.three{ grid-template-columns: repeat(3, 1fr); }

.card{
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 18px;
  padding: 16px;
}

.card h4{ margin: 0 0 8px; }
.card ul{ margin: 10px 0 0; padding-left: 18px; color: var(--muted); }
.card p{ color: var(--muted); margin: 8px 0 0; }

.mini{ margin-top: 12px; }

.project .stack{ display:flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }
.project .stack span{
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 4px 8px;
  border-radius: 999px;
}
.actions{ display:flex; gap: 10px; margin-top: 12px; flex-wrap: wrap; }

.chips{ display:flex; gap: 8px; flex-wrap: wrap; }
.chips span{
  font-size: 13px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  padding: 6px 10px;
  border-radius: 999px;
  color: var(--muted);
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  padding: 10px 14px;
  border-radius: 14px;
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
}
.btn.primary{
  border-color: rgba(124,92,255,0.55);
  background: rgba(124,92,255,0.18);
}
.btn.small{ padding: 8px 12px; font-size: 13px; }

.form label{ display:block; margin-bottom: 12px; color: var(--muted); font-size: 14px; }
.form input, .form textarea{
  width: 100%;
  margin-top: 6px;
  border: 1px solid var(--line);
  background: rgba(0,0,0,0.18);
  color: var(--text);
  padding: 10px 12px;
  border-radius: 14px;
  outline: none;
}
.form input:focus, .form textarea:focus{
  border-color: rgba(38,214,161,0.55);
}

.footer{
  border-top: 1px solid var(--line);
  padding: 20px;
  text-align:center;
  color: var(--muted);
}

/* Responsive */
@media (max-width: 900px){
  .hero{ grid-template-columns: 1fr; }
  .grid.three{ grid-template-columns: 1fr; }
}

@media (max-width: 720px){
  .grid.two{ grid-template-columns: 1fr; }

  /* hide centered desktop nav, show hamburger */
  .nav{ display:none; }
  .lang{display:inline-flex;}
  .menu{ display:inline-flex; }

  /* make header simpler on mobile */
  .header{
    grid-template-columns: 1fr auto;
  }
  .header-actions{ gap: 10px; }
}